111212313112021 has 8 divisors (see below), whose sum is σ = 122435574069600. Its totient is φ = 100174560600240.

The previous prime is 111212313112007. The next prime is 111212313112031. The reversal of 111212313112021 is 120211313212111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111212313112021 - 2¹⁵ = 111212313079253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111212313111983 and 111212313112001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111212313112031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46377110191 + ... + 46377112588.

It is an arithmetic number, because the mean of its divisors is an integer number (15304446758700).

Almost surely, 2^{111212313112021} is an apocalyptic number.

111212313112021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111212313112021 is a deficient number, since it is larger than the sum of its proper divisors (11223260957579).

111212313112021 is a wasteful number, since it uses less digits than its factorization.

111212313112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92754222899.

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 111212313112021 its reverse (120211313212111), we get a palindrome (231423626324132).

The spelling of 111212313112021 in words is "one hundred eleven trillion, two hundred twelve billion, three hundred thirteen million, one hundred twelve thousand, twenty-one".